名校
1 . 卵圆是常见的一类曲线,已知一个卵圆
的方程为:
,
为坐标原点,点
,点
为卵圆上任意一点,有下列四种说法:①卵圆
关于
轴对称;②卵圆上不存在两点关于直线
对称;③线段
长度的取值范围是
;④
的面积最大值为1;
其中正确说法的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407e34a89e07e42932753c24f022cc43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532d9de08698f61d7c010805c61a4ec5.png)
其中正确说法的序号是( )
A.①②③ | B.①③④ | C.②③④ | D.①②④ |
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解题方法
2 . 平面内相距
的A,B两点各放置一个传感器,物体
在该平面内做匀速直线运动,两个传感器分别实时记录下
两点与
的距离,并绘制出“距离---时间”图象,分别如图中曲线
所示.已知曲线
经过点
,
,
,曲线
经过点
,且
若
的运动轨迹与线段
相交,则
的运动轨迹与直线
所成夹角的正弦值以及
分别为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe35c9c09d1cb7c065df164ae5c62ea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5f18f4b293e74a9f14dfef88087c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad4738c7716c2d7e5cc1c9592e1191f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0289c9e66edb59a3f5f94bb4ba12441b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b808fb231a4d6929dfc896a4a3631194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29714e98c0140bfe3f213ffbe60a96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2833ddbe58a6f4e7585c69c698f0d2a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-15更新
|
106次组卷
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2卷引用:北京市第一○一中学2024届高三下学期三模数学试题
3 . 已知椭圆C:
的下顶点为A,斜率不为0的直线
与C交于B,D两点,记线段
的中点为E,若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53c51c25b65a37b676ae3c3b71c29f9b.png)
A.点E在定直线![]() | B.点E在定直线![]() |
C.点E在定直线![]() | D.点E在定直线![]() |
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4 . 下列可以作为方程
的图象的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205a810a4a2fcf168af295348fd3077.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-06-12更新
|
431次组卷
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2卷引用:河南省郑州市2024届高三第三次质量预测数学试题
5 . 过点
的直线
与圆
相交于不同的两点M,N,则线段MN的中点
的轨迹是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76943522d2b99a6275c7b4d54dd7f31a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e7ddc76bbbccdbd17a78b57b662579.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.一个半径为10的圆的一部分 | B.一个焦距为10的椭圆的一部分 |
C.一条过原点的线段 | D.一个半径为5的圆的一部分 |
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2024-06-11更新
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114次组卷
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2卷引用:贵州省贵阳市第一中学等校2024届高三下学期三模数学试题
名校
解题方法
6 . 已知正方体
的棱长为4,点
满足
,若在正方形
内有一动点
满足
平面
,则动点
的轨迹长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dd31453dc04f50bb2404e2b1ce8a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b6053e396df2cd152e1329fce766d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad6b3d073d8dd1cb7d9c89116b9d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.4 | B.![]() | C.5 | D.![]() |
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解题方法
7 . 已知点集
,且
,
,点O是坐标原点,其中正确结论的个数有( )
①点集M表示的图形关于x轴对称
②存在点P和点Q,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e8b17a7840ae7b75590da92fa0965b.png)
③若直线
经过点
,则
的最小值为2
④若直线
经过点
,且
的面积为
,则直线
的方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad8f0339d0b1ed15e016478ecb0c812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99410abc1d628453cf3a0aac800bf154.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b02a4fd3d5f75496756117a420386a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0929421a6188c3122442866b0b85a5e.png)
①点集M表示的图形关于x轴对称
②存在点P和点Q,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e8b17a7840ae7b75590da92fa0965b.png)
③若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d518b321289c322803177fcb4caccd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d44e8bc37ed03f44470762748a8f942a.png)
④若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad8f0339d0b1ed15e016478ecb0c812.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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2024-06-04更新
|
198次组卷
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2卷引用:陕西省西安市西安中学2024届高三模拟考试(九)数学(理科)试题
8 . 已知点
,点
,动点M满足直线AM,BM的斜率之积为4,则动点M的轨迹方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42f05b013e4b7166cbc87c5a83d6a85.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 在平面直角坐标系
中,已知向量
与
关于
轴对称,若向量
满足
,记
的轨迹为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582957208ff5f010dfc4dc51055f70be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dbbed50f876ede00089a5cb593fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
10 . 在平面直角坐标系
中,把到定点
距离之积等于
的点的轨迹称为双纽线.若
,点
为双纽线
上任意一点,则下列结论正确的个数是( )
①
关于
轴不对称
②
关于
轴对称
③直线
与
只有一个交点
④
上存在点
,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f6bccd63572d3f37da409fda25af6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad54248a8b3ae4ac8ec4434960ca484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd0f31afe865a63682ccd4a18a0e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
③直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f6bccd63572d3f37da409fda25af6a.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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